Dosing systems in the mixing room

Precise dosing and conveying technology is the heart of an efficient paint mixing room. It comprises piston, diaphragm and gear pumps for accurate material transport, combined with volume and mass flow dosing, intelligent pressure and flow control as well as automated colour change and valve systems. The system is complemented by material heating and recirculation to keep viscosity and temperature constant, as well as defined flushing and cleaning strategies for media-efficient operation. All components meet the requirements for ATEX protection, grounding and ventilation safety.

Applications & benefits

Dosing and conveying systems are used for topcoats, fillers, primers and other high-viscosity materials – in the automotive industry, industrial and plastic coating as well as in bodywork and refinishing. Properly designed systems ensure consistent material quality, improve reproducibility and reduce scrap and downtime. In addition, they reduce the consumption of flushing media and enable verifiable approvals with full digital traceability.

Tasks & set configuration

In conveying and dosing, the pump type and control strategy are precisely matched to the medium and process – whether piston, diaphragm or gear pump, with volume or mass flow control and defined pressure profiles. Conditioning includes filtration units, automated colour change blocks and precise valve technology. Temperature control via heaters and insulated hose bundles stabilises material properties, while recirculation ensures consistent viscosity and colour stability. Flushing processes are time- or event-controlled and minimise solvent consumption. Documentation includes labels and QR codes, PDF/CSV exports, serial numbers and user assignment as well as automatic limit checks – fully integrated into digital process monitoring.

Product areas & integration

The system portfolio includes feed pumps, precise dosing units, control and sensor technology, colour change blocks, filtration units, heating and hose bundles, recirculation systems as well as flushing and cleaning stations. In addition, scales, flow meters and a central QC/formulation software are used. As part of system design, we define the room layout, material flow and measurement point plan and integrate the dosing systems fully into quality workflows, report archives and audit processes. This creates efficient, reproducible and documented material flows for all coating applications.

Key benefits at a glance

Precise – stable flow/pressure control & calibrated measurement
Efficient – fast colour changes & reduced flushing volumes
Safe – ATEX, grounding/discharge & defined ventilation
Traceable – PDF/CSV reports, labels/QR & limit checks

Top manufacturers – dosing systems

Graco – pumps, dosing units & colour change.
WIWA – conveying/dosing technology & spraying.
Wagner – application & conveying systems.
Sames Kremlin – material supply & valve technology.
Walther Pilot – spraying/mixing & dosing technology.
Krautzberger – dosing units, guns & systems.
DeVilbiss – spray guns & accessories.
SATA – air/compressed air management & spray guns.
Anest Iwata – application accessories.
Hamach – furniture, containment & extraction.
ensutec – ATEX workstations & integration.
KAMATEC – workshop equipment.
Tieser – flushing/distillation & peripheral solutions.
Nederman – extraction & filtration.
ESTA – extraction technology.
Systemair – fans & air distribution.
DENIOS – containment trays & hazardous materials handling.
asecos – safety cabinets & storage.
Justrite – safety cans & containers.
OHAUS – scales & accessories.
RADWAG – precision/industrial scales.
Sartorius – laboratory & industrial scales.
Mettler Toledo – precision scales.
Mirka – cleaning & surface preparation.
3M – personal protection, masking & PPS peripherals.
beschicht. – QS templates, QR/label sets & customer-specific sets.

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Guides & resources

Solvent distillation unit Tieser – what are the advantages?

Lower flushing consumption thanks to recovery: how dosing systems benefit from distillation.

Learn more

Reducing VOCs: distillation plants in the mixing room

Efficient flushing & cleaning processes for dosing systems – reduce emissions and save costs.

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Frequently asked questions about dosing systems

Which components are part of a dosing system in the mixing room?

Core components are feed pumps (piston, diaphragm, gear), volume/mass flow dosing units, pressure and flow regulators, material filters, heaters/insulated hose bundles, colour change blocks, dosing/shut-off valves, sensors (temperature, pressure, flow), recirculation as well as flushing and cleaning stations. In addition: ATEX-compliant ventilation, grounding/discharge and hazardous material storage (e.g. type 90).

How do I ensure accuracy, viscosity and stability?

Accuracy is achieved via calibrated volume/mass flow measurement, reference weighing and controlled pressure/flow profiles. Material heating and insulated lines stabilise viscosity, recirculation reduces fluctuations. Filtration concepts protect valves and nozzles; flushing triggers (time/standstill/end of shift) minimise media consumption.

How do I document dosing processes in an audit-proof way?

Documented are recipe/parameters, actual/target flow, pressures/temperatures, material batches, colour change and flushing processes, operators and release steps. Evidence is provided as PDF/CSV with timestamps, serial numbers/labels and limit checks. Calibration and maintenance plans (scales/flow/temperature) ensure traceability.

Customer feedback

Request dosing system now

We plan and supply dosing systems including pumps, valve/colour change technology, heating/recirculation, sensors/control and documentation – from initial assessment to final acceptance. Result: precise processes, low flushing consumption and audit-proof documentation.